Iqfen



R. BEATON.

BOAT LAUNCHING AND LOWERING GEAR.

APPLICATION FILED DEc.z8, 191e.

,305,643. PnIenIedJu'ne 3, 1919.

3 SHEETS-SHEET l.

57E-ulti! FI. Beaton ms .vowels Farms ca. Fmmrurum vusmuamu, nA c.

w-'ITSGEE R. BEATON.

BOAT LAUNCHING AND LOWERING GEAR.

APPLICATION FILED DEC. 28. 1916.

Patented June 3, 1919.

3 SHEETS-SHEET 2.

` R. BEATON.

BOAT LAUNCHING AND LOWERING GEAR.

` APPLICATION FILED DEC. 281916- 1,395,643; Patented June 3,1919.

s SHEETS-SHEET 3.

P rnes co4, Pnomuma, wasumamn. n c.

RODERICK BEATON, 0F POLLOCKSHIELDS, SCOTLAND.

BOAT LAUNCHING AND LQWERING GEAR.

i ,scarna AppIication led December 28, 1916.

To all whom t may concern.' V

Be it known that I, Romeinen BnAToN, a subject of the King of Great Britain, residing at Pollockshields, in the county of Renfrew, Scotland, have invented certain new and useful Improvements in and Relating to Boat Launching and Lowering Gears, of which the following is a specication.

This invention relates to improvements in boat launching and lowering gear of the type in which the boat is carried by a carriage running on a pair of overhead runways or rails having pivoted extensions adapted to swing outboard from the ships side. p

The object of the present invention is to provide a more simple and effective control for such boat lowering` and launching arrangement whereby the structure may be of considerably less weight than hitherto and the parts simple of construction and manipulation.

According to the present invention a pair of pulleys is arranged on the carriage and the boat falls are passed over these, one end passing to blocks supporting the boat while the other end passes over pulleys at the end of the pivoted extensions and thence to the winch.

The invention is more particularly dea scribed with reference to the accompanying drawings in which Figure 1 is a plan view of the arrangenient.

Fig. 2 is a corresponding side elevation.

Fig. 3 is an end view.

The runways 1, preferably extend across the deck 2, from one side of the ship to the other, the winch gear 3, 4; being duplicated so that if for any reason it is undesirable to launch boats from any one side, the winch gear of that side can be used to transport the boats into such a position that they can be taken up by launching gear of the other side. The launching gear of any side is further adapted to have a sphere of operations extending at least one boats width beyond the center line of the deck for this purpose. The pivoted extensions 5, to the overhead runways on both sides of the ship can be swung out by any suitable means. For instance the runways may be pivoted about hinge pins 6 carrying a spur wheel gearing '7 with a worm having a shaft and handle 8 extending inboard.

The pivot-ed extensions 5 of the runways Specification of Letters Patent.

Fatented J une 3, 1919.

seriai No. 139,369.

at their outer ends carry pulleys 9 over which falls 10 pass from pulleys 11 at the ends respectively of the overhead gantry or Y of these extensions, and thence over guide pulleys 3 suitably arranged to winch drums. Such falls 1G preferably pass from the drum over a guide pulley or pulleys, d, thence over a pulley 15,011 the carriage, thence back to a fixed point 17 on the overhead runways or deck. This arrangement serves for the hauling in of the carriage and boat. The traversing of the carriage outboard is effected by the boat lowering falls 10, in that the boat is lifted olf the checks as far as is limited by stops or the like on the falls, or on pulley blocks whence further operation on the boat falls will cause the carriage to pass along the overhead runways and out on to the extensions. As the carriage reaches the outer end of the overhead runways and on to the first part of the extensions it can be lowered to the deck level receiving passengers. Its movements thence to the end of the extensions can be effected by releasing the brake on the winch drum in question, whereby the boat will pass outboard under its own weight and lowering can then proceed from the extreme outboard position. The pivoted extensions 5 after use, can be folded in by the worm gear or the like. These pivoted extensions are referably of at least twice the width of a' oat. A guide pin or roller is preferably arranged on the overhead runway, for instance on the outer post supporting it to guide the boat falls passing from the overhead carriage to prevent these falls fouling a stored boat on the deck when the boat, being launched, is at the extreme outer end of the extensions.

A preferable angle for the downward inclination of the pivoted extensions to the main overhead runways normally horizontal, will be about 15 thereto.

I declare that what I claim is 1. A boat-launching and lowering gear,

comprising overhead runways, a carriage for the boats supported thereby, outboard extensions to said runways having a top surface inclined downward away from said run-ways, vertical pivots for said outboard extensions, a pair of pulleys on the ca-r riage, boat falls Vpassing over said pulleys, one end thereof passing to the boat, while the other end passes over the pulleys at the end of the pivoted extensions and thence backward along the runways, 'a second pair of pulleys on the carriage and a second set of falls passing over said pulleys, and ineans to connect one end of said falls to a fixed point on the overhead runways.

2. A boat-launching and lowering gear, comprising overhead runways, a carriage for the boat supported thereby, an integral triangular frame-work on each of said runways, the upper side of which frame-work is inclined outward away from said runways,

forming outboard extensions, vertical pivots supporting said extensions, a worin gearing on the base of said :traine-work, a crank cooperating therewith whereby the extensions inay be swung outboard, pulleys on the end of said pivoted extensions, boat-falls passing over said pulleys, one end thereotl passing to the boat, while the other end passes backward along the runways, a second pair of pulleys on the carriage, and a second set of falls passing 4over said pulleys, and means to connect one end of said falls to a. xed point on the overhead runways.

In witness whereof, I have hereunto signed my naine this 2.7 day of October A1916, in the presence of two subscribing witnesses.

RODERICK BEATON.

Witnesses:

lV. A. BEEsToN, J. MCLACHLAN.

Copies of this Vpatent may -be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

